![glossy](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/illustrations/blue-glossy.png)
![glossy](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/illustrations/purple-glossy.png)
![glossy](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/illustrations/fade_circle.png)
CBSE /Class 9
Science MCQ Based On Sound introduction
Our free online Science test quiz for Class 9, CBSE will assist you to improve your Science skills on every concept in a fun interactive way.
![glossy](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/illustrations/blue-glossy.png)
![glossy](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/illustrations/fade_circle.png)
![test-your-knowledge](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/test_your_knowledge/laptop_testyourknowledge.png)
Happy students
![img](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/subject/awesome-classes.png)
Awesome classes
CBSE Class 9 Science Sound introduction
|
Sound is a longitudinal wave and a mechanical wave.
What is the common term for it?
It produces sensation of hearing.
Speed can be defined as total distance divided by total time.
This region is created when a vibrating object moves backward.
What is the relation between speed, wavelength and frequency?
It is a space that is completely empty of all substances.
Sound waves can travel through a medium like solid, liquid or gas.
Frequency is defined as the number of waves produced in one second.
Read all the options carefully.
![](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/inner_assets/assets/img/test_your_knowledge/banner.png)
At JustTutors, we believe in the power of digital technology to help students get personalized learning and attention from India's best-in-class science, english and math tutors. We are focused on creating a top-class e-learning platform that brings together the best teachers, technology, media, content for creating a seamless and world-class experience for every student.
![Justie](https://justtutors-cdn.azureedge.net/prod-resource/MasterData/Justie/chatbot_justie.gif)